Am I really crazy or just naive?

Okay so I married into a family that hates me. Truly whole heartedly hates me and I don’t know why as they’ve never told me and when I ask they just claim I’m still too new. Even thought I’ve been around 8 years now.

Anyways my SIL is having her baby shower soon. I made a post to see if the diaper cake looked decent as it was my first attempt. I went with the colors she has requested and such. Anyways I also made her a mommas basket. Basically just a bunch of goodies for her to use to take care of her not just baby. I got her favorite candles, some bath and body aromatherapy body lotion, fuzzy socks, a mani pedi coupon and a bunch of other small stuff to remind her to care for her too. All I’ve done has been to give her something I didn’t have, a reminder that I matter and a chance to have five minutes focused on me before baby arrives. My baby shower was a war zone between their family so it was over without 10 minutes. We were kicked out of the venue and everything. I was mortified. So I wanted to give her a better time and be nicer than she ever has been to me. Not to be the bigger person and throw it in her face, just to be a caring in law and actually put effort in. I’ve made all of the decorations and hand painted clay pots, I’m making the cake and even bought her the dress she wanted to wear because they couldn’t afford it.

My mom thinks I’m being insane and shouldn’t be doing any of it but getting a gift. Idk. Am I really doing too much?